Lock.



L. W. ROSS.

LOCK.

APPLICATION FILED sEPT.25. 1917.

Patented Apr. 23, 1918.

. 2 SHEETS-SHEET l.

INVENTOR WITNESSES ATTORNEY l.. W. ROSS.

Loox. APPLICATION FlLED-SEPLZS. I9l7 f w Patented Apr. 23, 1918'.

2 SHEETS-SHEET 2.

Inl-7 INVENTOH WITNESSES ATTOFIN EY n sans narrante rrria.

LEU WARREN ROSS, 0F SASKATOON, SASKATCHEWAN, CANADA, ASSIGNOR 0F ONE-HALF TO ALEXANDER W. MOKINNON, OF SASKATOON, SASKATCHEVAN, CANADA.

LOCK.

recanti.

Specification of Letters Patent.

ratentea api. aa, isis.

Application filed. September 25, 1917. Serial No.` 193,129.

ed certain new and useful improvements in Locks, of which the following is a specification.

This invention relates generally to locks, and particularly to car locks, aiming primarily to simplify the construction and ops eration of devices of this character, as well as to increase the efficiency of the same.

A further object of the invention is to provide an improved lock of simple and inexpensive construction which shall be capable of being readily applied to a door either of the sliding or hinge type, which may be readily opened or unlocked by one familiar with the operation of the same or possessing the required key, but which cannot be readily opened by unauthorizedpersons.

A still further objectjof the invention is to provide in a lock having a longitudinally slidable bolt, improved means independent of the locking mechanism for holding the bolt against sliding movement when the said bolt has been moved to locked position.

Still further objects reside in providing a lock of the character mentioned which shall be of simpliiied construction and which embodies but relatively few readily assembled parts, all of which are so constructed and assembled as to minimize the opportunity for wear or breakage of the same, which is positive in operation, and which shall prove thoroughly eiiicient and practical in use.

With these objects in view, together with others which will appear as the description proceeds, the invention resides in the novel formation, combination and arrangement of parts, all as will be described Ymore fully hereinafter, illustrated in the drawings, and particularly pointed out Vin the claims.

ln the drawings Figure 1 is a side elevation of a portion ofthe car or building, andillustrating the application of a locking mechanism con structed in accordance with the invention,

Fig. 2 is a transverse sectional view taken substantially upon line 2 2 of Fig. 1,

Fig. 3 is a sectional view looking in from the rear of the lock housing,

Fig. l is a transverse sectional view taken upon line 1-s of Fig. 3,

F/ig. 5 is a similar view taken upon line 5-5 of Fig. 3,

Fig. 6 is a sectional view taken on line 6-6 of Fig. 4,

Fig. 7 is a side elevation, partly in sec` tion, of a lock embodying a slightly modified form of the invention, l

Fig. 8 is a longitudinal sectional view taken upon line 8*@5 of Fig. 7, and

Fig. 9 is a transverse sectional view taken upon line 9-9 of Fig. 8. j

Referring now particularly to the drawings, 10 represents the lock bolt for the door, the said bolt being mounted for rotary as well as longitudinal movement in the keepers 11. The keepers 11 constitute metallic strap members secured in any preferred manner upon a base plate 12, the. said plate being fastened upon the exterior surface of the door.

The bolt 10 is provided with a pair of angularly disposed handles 13 and 14, the said handles projecting from the said bolt atv right angles to each other. One of the handles is provided with a laterally disposed opening or slot 15, which is adapted to re-` ceive a seal holding projection 16 extending outwardly from the base plate 12. rlhe pro` jection 16 is so arranged upon the plate 12 as only to be in alinement with the opening 15 of the handle 13 when the bolt 10 has been moved to locking position, and after the bolt 10 has been rocked vso that the handle 13 thereof is engaged with the plate 12, the projection 16 will extend through the opening 15. When so positioned, the bolt will be in locking position, and will be held by the projection 16 against longitudinal sliding movement. An opening 17 is provided in the outer protruding end of lthe projec-y tion 16, and through which a suitable seal may be extended. Y y

Arranged upon the side of the car vadjacent the outer end of the plate 12 is alock housing or casing indicated at 18. This housing has an opening or aperture in one Aside thereof, through which the outer end of theflockbolt is adapted to eXtend when it is desired to lock the same against rotary movement. The said outer end of the bolt 10` is provided with an outwardly extending lug or bit V20', which is adaptedito enter the housing 18 through an opening or notch 19 in the said housing and in communication vwith the bolt receiving aperture. This notch isofawicltlrand depthequal to or slightly greater than the thickness and depth of theV said bit. It will be observed that the bit 20 is disposed at right angles to the handle 13 and extends from the bolt diametrically opposite to the handle 14. The notch or slot 19 in the end of the lock housing is so arranged that the said bit 2O cannot pass therethrough unless the locking handle 13 has been released from the projection 16 and is extending outwardly at right angles to the base plate 12.

Pivoted as at 23 within the housing 18 longitudinally, so that portions thereof are disposedupon each side of the shelf 26 to exertpressureupon the latch sections.

Arranged within the casing 18 and adj acent'tlie forward' end of the latch 22 is a laterally extending post 27, over which the innerrenvd'of Ya key 28k is adapted to engage. Thisl key-is provided with radially disposed bits 2 9, the said bits being arranged in spacedjrelation upon the key shank so as Vtofengage with the latch sections 22 and so asto straddlev the shelf 2G separating the saidjsections. VVhenthe key has been in- 1 sertedfthrough the key-hole 30 in the casing,

the` inner endof the said key will engage oven-the post 27, andv the latch section will b e retractedby rotating the said key shank,

' it-being understood of course, that the bit 29 will be of-suflicient length to engage the forward edge of the latch and move the same rearwardly against the tension of the spring 24 a distance suiiicient to withdraw thek freeA endY of the said latch from engagementwith the bit20 of the bolt 10.`

Assuming'the bolt10 to be withdrawn y fromthe housing 18, and it is desired to lock the door, theV handle 1&1` is grasped and movedso that-,the bit end of the lock bolt will enter the housing. This" outward sliding movement of the lock bolt is limited by engagelnent ofthe handle 13 with the outermost of the keepers 11. lVhen this outward limit has been reached, the bolt is rocked so that the handle 13 thereof will lie Iiatvagainst the plate l2, it being remembered that this movement causes the pro- `iection 16 to pass through the opening 15 in the said handle. This rocking movement of the bolt causes the bit 20 to move downwardly, forcing the outer end of the latch sections 22 rearwardly against the tension of the spring 24, and after the limit of the rotary movement has been reached, the shoulders at the outer end of the latch sections will engage over the bit 20. The bolt is in this manner locked against being rotated. The latch sections may be retracted by the insertion and turning of the key 2S, as will be readily understood.

In Figs. 7 to 9 inclusive I have illustrated a slightly modilied form of the invention, wherein the use of a key is dispensed with. In this form of the invention, the lower end of the latch 22 is provided with an eccentric 31, to which is pivoted as at 32 the inner end of a link 33. This link extends to the base of the housing 18, and is in register withan aperture in the lower end of the said housing. An expansion spring 3a normally holds the lower end of the link adjacent the said aperture.

In this embodiment of the invention, when it is desired to retract the latch 22, the linger may be engaged with the lower end of the link 33, and upward pressure exerted thereon will rock the latch 22 upon its pivot 23, thus moving the latch from engagement with the bit 20 of the lock bolt.

From theV foregoing it is obvious that I have provided a lock which is of extremely simple and inexpensive construction and which has its various movable parts so constructed and arranged as to minimize the opportunity for wear or breakage, or unauthorized operation. The improved lock has been mentioned in connection with car doors, but it is to be understood that the lock may be equally as well employed in connection with other structures.

While the present is a disclosure of the preferred embodiment of the invention, it is to be understood that the invention is not limited thereto, but that various changes in the minor details of construction, proportion, and arrangement of parts may be resorted to if desired without departing from the spirit of the invention as defined by the appended claims.

What is claimed is 1. In a lock, a longitudinally movable and rotatable bolt capable of rotating` only when moved to its limit in one direction, a lug on the freeend of said bolt, a latch for engaging said lug to holdfsaid bolt against rotation, and means for operating said latch.

naeefrri 2. In a lock, a longitudinally movable and rotatable bolt capable of rotating only When moved to its limit in one direction, a lug on the free end of said bolt, a latch for engage ing said lug to hold said-bolt against rotation, Ameans for holding said bolt against longitudinal movement after the same has been engaged by said latch, and means for operating said latch.

3. In a lock, a longitudinally movable and rotatable bolt capable of rotating only When moved to its limit in one direction, a handle on said bolt having a slot therein, a projection adapted to extend through said slot and being provided With an opening to receive a seal, a latch for holding said bolt against rotation when said projection is engaged in said slot, and means for operating said latch,

4. In a lock, a longitudinally movable rotatable bolt, a housing having an opening in one end thereof to receive one end of said bolt, the said bolt being capable of rotating only When the said endisWi-thin said housing, latch means Within said housing for holding said bolt against rotation, and means for operating said latch means.

5. In a lock, a rotatable and longitudinally movable bolt, a lug on one end of said bolt, -a housing having an opening corresponding to the size and shape of said lug and end of said bolt, means for holding said bolt against ro-tary movement when Withdrawn from said housing, and a latch in said housing adapted to engage said lug to hold the bolt against rotation after having been rotated a predetermined distance in one direction.

6. In a lock, the combination With a door, a housing aiiXed adjacent said door and being provided With an opening, a longitudinally and rotatably movable bolt on said door, a lug on one end of said bolt, the

said end and lug being. adapted to enter to receive a lock bolt, a latch pivoted in said.

housing, a spring for holding said latch extended, a lever connected at one end to said latch and terminating at its opposite end adjacent the Vsaid housing, the said lever being adapted When moved inwardly to retract said latch, and a spring for holdingl said lever extended.

In testimony whereof I affix my signature in presence of Witnesses.

LEO WARREN RUSS.

Witnesses: 3 GERTRUDE SMITH, .ff l G. CARMIGHAEL, C. Gr. Loom.

@oplet of this patent may be obtained for five cents each, by addressing the Commissioner of retentit,

Washington, JD.

Vdi() 

